Inlet-valve mechanism



Ma 4 l y 2 927 P. HAAS INLET VALVE MECHANISM Filed NOV. 16, 1926 50INVENTOR .5@ BY a ATTORNEY Patented May 24,1927.

UNITED STATES PHILIP HAAS, or DAYTON, o nio.-

INLETfvnLVE iviEonAivIsivi.A

' Appiicann fried inventer 16, 1926. `semaine. 148,639..v l

My inventioncon'sists in the novel yfeatures hereinafter described,referencegbeing had to the accompanying drawing which' illustrates oneembodiment of the invention selectedby me for purposes of illustration,and the said invention is fullydiselosed in the followingdescription andclaims.

The object` of my inventionis to provide V an inlet valve mechanism forflushing tanks adapted to be controlled by a floatand float lever, inwhich the maximum .eiiicieney combined with eXtremesimplicity andcheapness of manufactureis obtained, the porvtions, of the ,devicesubject to wear andreplacement being readily accessible. to. theordinary householder, sothat all necessary repairsandreplacements maybemadeby an unskilled person without the delayA and eX- pense incident tothe. employinentof skilled y labor, the said valve mechanism being so.

constructed that it may be read-ilyinstalled 'in any of t-heordinaryfiush tanks now in use. where desired,

for the purposev offrei pairing or refitting the same.

Referringv to the drawing,

Fig. 1 is a ,front view off aflush 1' tank partly broken away, andshowingmy improved inlet 4valve mechanism ,installed d therein inconnection with the lusual float member pressed into the same.

andiioat lever.l y

2 is an enlarged sectional view of the inlet valve and adjacent parts,including the inlet and discharge pipes connected therewith. l

Fig-3 is a kdetail view showing the sevferal parts of the valvemechanism inseparated relation. 1

Iiigzxi is atop plan view of the lower portion of thevalve bodyshowing-'the seat Fig. 5 represents a sect'on on line of Fig, 2, showingan adjustable stopplateffor limiting the downward movement of the float.Y i Y Fig. 6 represents a-sectional view of Ethe lower portion of thevalve body showing ythe manner of connecting an after-fill -pipetherewith, when desired.

Fig. 7 is a bottom plan view of a muflling collar with which thedischarge pipe from the valve mechanism is provided, as shown in Fig. 2.Y i

ln the accompanying drawing, 1 represents a flush tank which may beofany usual or preferred construction.'A These :provided withf` aLremovable cover, v,as indicated at'2, butniy invention is applicableto'f'tanks generally, regardless Vof the material of whichY they ai'emade. rThe tank is 'shown provided with a, discharge or.

ilushing pipe, 3, controlled by any "usual or preferred type of.flushing valve mechamsm, 'which isnot ,herein shown or described, as' itformsno part of my present invention. I have, however, shown the tankprovided `withthe usual overflow pipe indicated l at 4.' In the formofmy invention herein shown, y represents'v a verticallydisposed'r inletpipe within the tank which `screws into a fitting, 51, having a threadedsleeve portion, lafextendmg.through an aperturein the bottom of thetank, and secured toV thetank ,bottom by a nut, 511. The threadedsleeve, 51?, ,is lconnected with a `water supplypipe, 52, in any usualor de-' sired way. The upperend of the inlet pipe,

y 50,;'preferably extends above the water level of the tank, asindicated in Fig. l, and sup-` portsfthe inlet valve',the, casingofwhich preferably comprises two parts united by a follower in va mannersomewhat similar to a pipe union.l The lower portion of the -valvecasing comprises a hollow sleeve, 53, which is preferablyprovidedfexteriorly at its upper end with threads, '53%' which may bev.r'olledf-or cut therein, and thelower portion :of the sleeve isprovided with interior threads, 531. The interior of the sleeve isprovided with al plaincylindrical bore, so

that this" part can be readily produced in quantity on van ordinaryscrewy machine. Vithin the sleeve, 53, is a separate valve seat membercomprising a polygonalv body, l y preferably square, indicated at.58,ofAsuoli diameter through 'the opposite corners thereof, thatitmay beforced byfpressure into the bore of the sleeve, `53, so that thesharpcorners of the block willV seat themselves in thev metalof thesleeve, and` retain the valve seat member permanently in the sleeveuntil' it is desired to drive it out. The block, 58, is internallythreaded kto receive the upper end of the Water inlet pipe, 50, which isscrewed therein, and the upper part ofthe block is turned downto providean annular valve seat, 59, the' outer edges of` whichare preferablyslightly beveled ory rounded, asindicated at 59a. This part may alsoV beeconomically produced in v quantity from. square or polygonal stock on ascrew tanks are usually made of porcelainwand machine Itk will be notedthat y when the block, 58, is forced into position within the sleeve,53, as indicated for example 1n Fig. 2 and Fig. G, an annular space isprovided withinthe sleeve, as indicated at 57, surrounding the valveseat, which communicates by means of the segmental shaped verticalpassages, 57, with the lower portion of the sleeve into whichthevertical discharge pipe, 56, surrounding the water inlet pipe, 50, isscrewed. 4The discharge pipe, 5G, does not extend to the bottom ot thetank, and the annular passage is thus yformed, indicated at 60, betweenthe inlet pipe, 50, and the outlet vthe klitting, 51, and leave anannular space,

82, 'for the discharge of the water into the tank.y This annular space,82, will be oi much greater capacity than the annular space, 60, betweenthe inlet and discharge pipes. In order to hold the lower edge of themuiiler sleeve sutliciently above the tank bottom to insure the freedelivery of water thereunder, said sleeve is preferably pro# 'vided withinwardly extending brackets indicated at 83, see Figs. 2 and 7,whichrest upon the fitting, 51, and hold the lower edge of the mutllersleeve at the desired distance from the bottom of the tank. Thisconstruction is very simple, but is very etlicient, in permitting thewater to discharge into the tank without pressure, thus causing it torun in silently, regardless ofthe pressure of the water supply.

The upper part ot' the valve casing comprises a casing member, 61, whichis otcylindrical form, and is provided at its lower end with an annularflange, 61a, adapted to receive a follower, G2, provided with interiorlythreaded portions to engage the exteriorly threaded portions, 58, ofthecasing member. 53. The valve itselt is formed by a simple disc, G4, ofrubber or leather, or other suitable material, having its edges clampedrigidly between the meeting faces of the casing members, G1 and 53,above the valve seat, 59, the said disc being adapted to be forced downinto engagement with the seat by a mushroom plug or pin, 65, located ina recess, 61h, in the upper casing member, and having a stem, `66,.extending through a hole inthe upper casing member into a transverserecess,l 67, with which said member, 61, is provided. It will Abe notedthat the clamping of the marginal. portions'ot the valve disc, 64,between the members ot the casing makesit unnecessary to-provide anystufling box for the projecting stem, 66, as no water eanpass above thevalve. ot the mushroom plug, 65, is provided with a 'circular recess,65a, slightly larger than the valve seat, 59, so that when the mushroomplug is depressed as hereinafter described, the central portion of thedisc valve will be clamped between the inner face of this recess and thevalve seat, and'delected slightly out of the plane of the other portionsot the disc, thus insuring the positive seating of the valve on thevalve seat, and the closingot the water inlet aperture in the seat. Theupper portion ot' the Acasing member, 61.is ,provided on oppositesidesof the slot or recess, 67, with two pairs of aligned apertures, 68and v(38, located at different distances from the mushroom plug, anddesigned to receive a pivot pin, 69, on which the valve actuating leveror float lever, 70, is pivoted. The object of havingtwo ksets ofapertures is to permit of changing thev leverage ot the float lever withrespect to the mushroom plug, when this is necessary or desirable. Inthis instance I have shown the lever, 70, threaded. at its inner end andprovided with an internallythreaded sleeve, 71, into which it screws,the said sleeve being drilled transversely to receive the pivot pin, 69,and after the parts are assembled with the pin in the proper pair ofregister.

ing holes, the float lever, 70, isscrewed up against the pin, asindicated in Fig.' 2, and serves to lock the pin against accidentallongitudinal movement. I also prefer to provide the threaded portion ofthe lever, 70, adjacent to the sleeve, 71, with a lock nut, 72,rpreferably in the form of a wing nut, which can be screwed up againstthe end of the sleeve, 71, so as to lock the parts. into position, andprevent the lever from' unscrewing and releasing the pivot pin, 69.

I also prefer to provide the iioat lever, 70, with an adjustable stopVto limit its down- .wardmoveine1`1t, so that when the water level fallsduring va flushing action, the float indicated in this instance at 75',cannot interfere with the operation of the flushing valve, (not shown).For this purpose I conveniently employ an adjustable stop plateindicated at 73, and shown in detail in Fig. 5. This plate is preferablyrectangular or polygonal in shape` and is provided with an apertureindicated at74f, surrounding the lever, 7(1), and so located that eachof the edges. 78, 73h, 73C and 78d are situated at a 'different distancefrom the center of thev hole, 74, as indicated by dotted straight linesin `]Fig. ,5. The length of the sleeve, 71, from the vpivot pin, 69, isso calculated that by inserting this stop plate, 73, Y

between the end of the sleeve and the set nut, 72, its lowest edge will:engage a part The lower taceY llt) of' the inlet valve structure, aseforexample in this instance the upper face of the follower, 62, and serveas ajstop'tolimit the downward movement-of the'float and float lever. Byloosening-the set nut, 72, the stop plate., 73, may be rotated'to 'bringany one of its edges into the bottom position, there.

by forming' an adjustable stop-for limiting .water in the inlet pipe,50, willraise-'the valve, 64, permitting the water to flow over thevalve seat and down through the segmental passages, 57, between theAseat block, 58. and the walls of [the lower casing member, 53, anddischarge through the annular passage, 60, between'the inlet pipe,50,'and.

the discharge pipe, 56, Iinto the muffler sleeve, and thence silentlyinto the tank. As soon as theflushing valve is closed, Ythe tank isrefilled, and as the water level rifsesit lifts the fioat fand floatlever, depressing the mushroom plug andforcingthe disc valve upon itsseat, so as" to stop further ingress of water. fIn pressing thel disc-valve upon its seat, the lbeveled edges, 59'1, of the seat, and therecess, a, in theplugco-op'erate in `seating the valve 'at the outeredge of the seatrst, thus 'closing off the'supply of v-water silently,and preventing theV prolonged hissing which isfrequently noticed in theclosing of inlet valves,

In Fig. 2 of the drawing vthe float lever is 'shown pivoted in theaperture, 68, located at the greater distance from the axisk of themushroom plug. In a case wherevery high water pressure is encounteredand itis desired to aifoid the` fioat and float leverxincreased leveragein closing Vthe inletv valve, the upper member, 61, of the valve casingmay be rotated into the vdiametrically opposite posit-ion by looseningthe follower, 62, and the float lever rmay be pivote'd in the otherp'air of apertures, 68a.

It will be seen that my improved inlet valve mechanism is of verysimpleconstruction, and that the parts may be readily manufactured andassembled. As the valve casing is located above the waterrlevel, it isreadily accessible to elfect'a repair or replacement by simply removingthe top or cover, 2, of the tank, when the follower'can be unscrewedbytheingers, (or an ordinary `without the aidof skilled labor.`vjustment of the stop plate, 73,7will ordinabersv of the valve casing,The part of an yinlet'i'valve mechanism which is most sub- `ject toinjury? and wear, is the .valve itself, i `and as-this is a merev discof rubber: or "ilcatlier,-it. can be 'readily removed and replaced byVanother similar valve or disc, and y if the householderV does nothappen/to have 'suc-h a 'disc furnished by the manufacturer,

adisc can be improvised by cutting it from any suitable piece of Yrubbery or leather, whichmay be conveniently at hand. Should the valveseat become injured 'by the'action of grit in the water or-corrosionfrom chemical constituents of the water, the lower cas- .ingr member canbe unscrewed, and the seat plug, 58, .driven out Yfrom thevbottomnpwardly by means of'a nail or hammer or otherwise, and a newvalve seatjblock furnished by the manufacturer canbe inserted,

`sothat my improvedvalve mechanism can be repaired byv any ordinaryhouseholder,

The adrilybemade when the device isinstalled and will probably vnotrequire further adj ust- Y-ment,-but if' such adjustment should benecessary-u it can be readilyy effected by simpl-y -looseningthe' saidnut, 72, and turning the plate, 7 3, tobring the proper edge into lowestposition.

Where it is desired to provide for an.

after-fill, the lower member, 53, ofthe valve casing ispreferablyprovided with a lat-y eralthreaded aperture, as indicated at53,

in Fig. 6, in which is screwed anipple, 75, providedwith a bore at itsouter end large enough to receivea piece'of small-copper Itubingindica-tedV at76.V ,This t'ubing,76, is .providedzwith a rubberwasher orpacking ring, 77, surrounding the same, and is engaged by a follower, 78, which screws on to the nipple, 75, so as to clampthe washer,

'77, between itV and the -end ofthe nipple and around the tube, 7 6,thus forming what is in effect a rslip joint,.,and obviating thenecessity of threading the copper tube,

which necessarily weakens'such a tube and causes it to convenientlybreak in the threads; `The outer end of thc tube, 76, is

carried above' the overflow pipe, 4, as indicatedinfFig. for eXample,ina well knownk way,thus providingl a smalhstreamfof water which will bedischarge through the overflow pipe. to the bowl after the closing ofthe flushing valve and until the inlet l'valve is closed, and providingfor an after-v fill of the bowl.. Where the tank is provided with othermeans for effecting the afterfill, the lower member ofthe valve casing.may be made without the lateral aperture, 53C, as 'indicated forexample in Fig. 2;

By making `the .valve seat block separate Afromy the lower member' ofthe valve casing,

wrench, if'necessary), to separa-te the mem- -as herein shown anddescribed, this portion casing ot'non-corrosive material, thus elf-.iecting a very considerable saving in the costr of n'ianutacture. ltwill also be understood that when the parts are assembled, the Amarginalportions of the flexible disc valve will be clamped by the action of thefollower between the annular clamping portions of the upper and Alowercasing members in the manner shown.

That l claim and desire to secure vby Letters Patent is l, Thecombinationwith a ilushing tank, o' a vertically disposed inl-et pipetherefor, anV inlet'valve casing secured to the upper cnd ol said pipe,and provided with an inlet valve, a loat operated lever for controllingsaid inlet valve, a discharge pipe surrounding the inlet pipe andextending from the inlet valve casing to a point adjacent to the bottomof the tank, and a murtier sleeve having a portion at its upper endlitting the lower end of the discharge pipe,

and a portion at its lower end ot larger diameter providing ultimatedischargek passages ol increased area adjacent, to the bottom oit thetank, to .facilitate the discharge and distribution of water from thevdischarge pipe noiselessly regardless of the pressure in the inletpipe.

Q rllhe combination with ay flushing tank, oi' a vertically disposedinlet pipe therefor, an inlet valve casing secured 'to the upper end. ofsaid pipe, and provided with an inlet valve, a float operated leverforcontrolling said inlet valve, a discharge pipe surrounding the inletpipe and extendingr from the inlet valve casing to apoint adjacent tothe bottom of the tank, and a mui"- iier sleeve having an aperture atits upper end closely .surrounding the lower end vof the discharge pipe,.and an aperture of greater diameter at its lower end, and

, means for supporting,r said sleeve in position to provide an ultimatedischarge passage between' its lower edge and the bottom vof the tank otgreater area than the discharge passage between the inlet and dischargepipes, to facilitate the discl'iarge ot water into the tank withoutnoise regardless of the pressure in the inlet pipe.

3. The combination with a iiushiiig tank, of a vertically disposed inletpipe therefor, an inlet valve casing secured to the. upper end of saidpipe, and provided with an inlet valve, a float operated lever forcontrol- V'linker said inlet valve, a discharge pipe sur- .rounding theinlet pipeand extending from wardly extending supportingv .flanges forsupporting it at the desired distance from 75 the bottom of the tank. y

'1l'. The combination with a iushing tank,

of a vertically .disposed inlet pipe therefor,

an inlet valve vcasing secured to the upper end of said pipe, andprovided with an in- 80 let valve, a iioat operated lever forcontrolling' said inlet valve, a discharge pipe surrounding the inletpipeand -eXtendingfro'm' the inlet valve casing lto a pointfadjacent tothe bottom of the tank, and a muttler'sleeve 85 or' porcelain having anaperture at its upper end surrounding and substantially. fitting thelower end otthe discharge pipe, and

vhaving an aperturei'of greater diameterat its lower end, said sleeve.being provided 90 with integralL supporting langes `for holding it atvthe desired l.distance 'abo-ve the Y bottom of the tank. Y

5. Inlet valve mechanism for flushing tanks, including an inlet valvecasing't'ormed 05 ot two separable members, one of `said members beingprovided Ywith a cylindrical bore and havinga discharge aperture at itslower end. and threaded portions forconnecting a discharge pipethereto,aseparately termed loo block polygonal in horizontal cross-section, andprovided'at its upper end with avalve seat, said block being forced`into. said bore and frictionally retained therein,an'd ipr-ovidingverticalapertures laterally of said. 105

block communicating with the. ldischarge aperture, said -block having alongitudinal bore and being provided with threaded portions forattaching thereto an inlet pipe extending longitudinally of thedischargepipe, in

the other member ot' the valve casing` being` provided with alongitudinally movable valve engaging plug, having a' stem entendingthrough said member into position to be engaged b v a loat operatedlever, and said 11n members being provided with cti-acting -clampingportions, a flexible disc valve interposed between the clamp'ingportionsot' said members and extending between the valve seat and said plug, andmeans for 120 clamping said members together upon Vthe marginal portionsotl said. `disc valve.

6. Inlet valve mechanism :tor flushing tanks, includingv an inlet valvecasing formed oiE two separable members, one of said mem- Vlas bersvbeing provided with a cylindrical bore and having a dischargeapertureat its lower end, and threaded portions for connecting adischarge pipe thereto, a separately formed block polygonal in,horizontal cross section, lao

and provided at its upper end with a valve: seat, said block'beingforced into said boreV and trictionallyretainedy therein, and providingvertical apertures laterally of said blocl Communicating withy thedischarge' aperture, said block having a longitudinal bore and beingprovided with threaded portheV other member of the valve casing beingprovided vwith ar longitudinally movable valve engaging plug, having astem extending through said membe'rinto position to-bef engaged byailoat operated lever, and said members being provided with co-actingclamping portions, ya flexible discl valve` interposed between theclamping portions lof said members rand extending between the valveseatand said plug, and means for clamping said members .together uponthe marginal vportions, 'of said disc valve, said plug having its Avalveengaging .'ace pro-;

videdl with arecess of slightly greater diameter than the valve seat.

7.'Inlet valveV mechanism4 for, flushing tanks comprising among itsmembers a valve casing formed Voittwo separablemembers,

oneot said members being provided witha longitudinal bore, annularclamping portions at its upper end, and internally threaded portions atits lower end to receive a ldischarge pipe, a separately formed' blocksquare in horizontal cross-section, having its angular portions uengagingwthe cylindrical bore of said member to* frictio'nallyv retainvsaid block therein, and formlateral passages aroundthe blockcommunicating Vwith the discharge pipe, said block being provided at itsupper end with a valve seat of smallerv diameter than saidbore, saidblockv having a longitudinal bore and being provided with threaded'portions at its lower end to receive a water inletpipe, the othermemberjot said valve casing being provided on lits lower face withannular clamping portions, `and at its upper end with', a transverserecess" to receive a float ope-rated'lever, and meansfor pivotallysupporting said lever in said recess, said member being also provided'with a vertically movable plug, having a stem extending rlongitudinally through said 'mein-j ber',`into said recess inuposition to beyengag'edv by the float .actuated lever, ajdisc valve extending betweensaid plug and valve seat and having its marginal portionslocatedbetween' the clamping portions of said' casing members, one otsaid casing members being provided y,with annular g'l'an'ge and theother with Vexterior threaded portions,

and a follower for-.engaging saidllange and threaded portions of saidvmembersA vrespectively, jand clamping" them" together'iupo'n valve. i fY 8.-Inletvalvei'n'echanism forflushing taiilrs,'including an inletvalvecasing li'formed of two separable members, oneof saidy mem- 1 seat,vsaid bloclr being forced-into said bore"v andv frictionallyretainedtherein, and kproviding vertical apertures laterally of said block'comiiiunicating with the discharge aperture, said block having aloiigit'udi-gy nal bore and being provided with threaded portions, forattaching thereto yanV inlet pipe extending longitudinally of thedischarge pipe, the other member 'of the valve casing being providedwith a longitudinally movable valve engaging plug, having asteniextending through said'member into position to be' engagedvbya 'floatoperated lever, andv said Ymembers being provided with co-acting`clamping portions, a flexible disc valve interposed between theclampingportions of' said members and lextending between valve seat andSayid plug,- and means clamping said members together upon marginalportions of said'disc valve, irstv mentioned member `offs'aid valvecasingbeing provided with 2a lateral apertureV communicating with thevertical passages around the seat block therein, and ,means forconnectingan after-fill pipe with said lateralv aperture. 4 p 9. Inletvalve mechanism l'or flushingV tanks, including an inlet valve casingtermed of two separable members, one ot said inembers being providedwith a cylindrical bore and having avdisch'arge aperture' at its lowerend, and threaded portions v:tor connecting a discharge pipe thereto, aseparately Voiine'd block polygonal in horizontal cross-section, andprovided atits upper' end with a valve seat, .said block being forcedinto said bore' and frictionally retained therein, and'providingvertical apertures vlaterally. o'fs'aid for the Lblock communicatingwithl the discharge aperture, said block having a longitudinal bore andbeing provided with threadedpoi'- tioiis for attachingV thereto anlinletpipe eX: tcnding longitudinally of thefdi'scharge pipe `the othermember ot the-valve casing being provided with a longitudinally movablethe Cil

the Y Cil said-finembers; together upon vthe. marginal portions of said,disc valve, the first vmentioned casing in-emberb'eing provided withala'teral aperture communicating with the vertical passagesaround'thescatblock vtherein, said lateral aperture having an enlargedportion for receiving an unthreaded 'atter lill pipe, and a follower andpacking ring for attaching the after-till pipe to said cas;y ing memberwithout the use oi. threads.

l0. Inlet valve mechanism for flushing tanks, con'iprising among itsmembers a vertically disposed inlet pipe Vprovided with means forsecuring it to said tank, an inlet valve comprising a. lower Vmembersupported by said inlet pipe, and provided with' a ccntrally locatedvalve seat and vertical dis,- cli'ar'ge passages disposed laterallythereof, andthreaded portions at its lower end for receivingandsupporting a discharge pipe surrounding the inlet pipe, any ripperinembei"l detachably connected to the lower inember, and provide'dlatits ripper end with means for pivotally supporting alioat, lever, andhaving a vertically movable plug provided with a. stem, a disc' valveextending between said plug ancttlie valve seat orthe other member, andhaving its marginal portions clamped between said members'fa float,

edge portions atdifterent distances from thek lever for engaging aportion or said valve to limit the downward movement of said lever, andmeans `for clamping said plate in its adjusted postion.

ll. Inlet valve mechanism tor flushing tanks comprising among `itsmembers ,a .vertically disposed inlet pipe provided. with means forsecuring it to said tank, an l.inl-et valve comprising a lower membersupported by said inlet, pipe, and provided with a centrally locatedvalve seat and vertical discharge passages disposed laterally thereo't','and threaded Vportions at its lower end ior receiving and supporting adischarge pipe surrounding the inlet pipe, an upper mem- 'ber detachablyconnected to the lower member, andv provided at its upper end with meansfor pivotally supporting a float leverI` and having a vertically movableplug provided with a stem, a disc valve extending between said plug andthe valve seat ot' the other member, and having, its marginal portionsclamped between said members, a float lever pivotally connected with`said second mentioned member in operative `relation with said stem, arectangular stop plate pro-A vided with an aperture therein to engagesaid lever, the axis ot said aperture being located at differentdistances from the several edges of said plate, said edges bedingconstructed to engage a port-ion of the valve casing to limit thedownward movement ot the float lever, and clamping means for .holdingsaid plate in itsk adjusted position with respect to said lever.

l2. Inlet valve mechanismV comprising Leeaem? among its membersa-verti'eally disposed in'-V let pipe, a valve casing comprising a lowermember, having a valve seatand'threaded portions adjacent thereto forengaging.said inlet pipe, vertical passages 'exterior to and lateral orsaid valve seat, and a threaded aperture atits lower end for engaging adischarge pipe surrounding the inlet pipe,

an upper member provided with a transversev connecting said sleeve withthe upper cas'- ing m-ember and extending through the transverseaperture in the sleeve, and the aligned apertures of said casing member,a ioat lever having ,a threaded portion 'for engaging in the recess insaid sleeve, and adapted to engage said pivot pinto hold it againstlongitudinal movement, and a'set nut onthe threaded portion ofsaidrlever, said sleeve forming an extension ol said lever and having apart in operative engagement with the stem of said plug.

13. Inlet valve mechanism comprising among its members a verticallydisposed inlet pipea valve casing comprisinga 'lower mem-v ber, having avalve seat and threaded 'portions adjacent thereto for engaging saidinlet pipe, vertical passages exteriorto an'dlateral of said valve seat,and a threaded aperture at per casing member and extending throughthetransverse aperture in the sleeve, and the aligned apertures said casingmember, a float lever having a threaded portion` for en` gaging. in therecess in said sleeve, and adapted to engage saidpivot pin to hold itagainst longitudinal movement, and a set nut onthe threaded portion vofsaid lever, said sleeve forming an extension or said lever and havingapart in operative engagement with the stemof said plug, a rectangular.stop plate interposed between said setV nut and said sleeve, andprovided with an aperture located at different distances from the edgeportions of said plate, for engaging the threaded portion of said lever,the edges ofV said stop plate being adapted to engage a portion of thevalve casing to variably limit the downward movement of the float lever,whereby said vset nut locks the said lever against rotation in thesleeve, and in engage- Aupper members, the lower member being providedwith a cylindrical bore and threaded at it-s lower end to receive adischarge pipe surrounding the inlet pipe, a block polygonal inhorizontal cross-section, having its angular' portions trictionallyengaging said cylindrical bore, and forming vertical passages betweenthe polygonal faces of the block and said bore, said block having alongitudinal bore an-d a valve seat at its upper end, and said memberbeing provided with exteriorly threaded portions, the upper casingmember being provided with an outwardly projecting annular ifiange, aninterior recess above said valve seat, a transveise recess in the upperportion, and a vertically movable plug having a stem extending into saidrecess, a i'iexible disc valve extending between the plug and said valveseat, and having its marginal portions clamped between said membersr ofthe casing, a follower detachably connecting said casing members, a.float lever provided at one end with a sleeve threaded thereon andpivoted in said recess in operative relation with the stem of said plug,said lever being adjustable longitudinally in said sleeve into andv outof engagement with the pivot, a set nut on the threaded portion of saidlever for locking it with respect to the sleeve, and an adjustable stopplate interposed between said set nut and sleeve, and having edgeportions Y at different distances from the lever for engaging saidfollower to limit the downward movement of the float lever.

15. Inlet valve mechanism for flushing tanks, inclu-ding an inlet valvecasing formed of two separable members, one of said members beingprovided with a cylindrical bore and having a discharge aperture at itslower end, and threaded portions for connecting a discharge pipethereto, a separately formed block polygonal in horizontalcross-section, an-d provided at its upper end with a valve seat, saidblock being forced into said bore and :trictionally retained therein,and providing vertical apertures laterally of said block communicatingwith the discharge aperture, said block having a `longitudinal bore andbeing provided with threaded portions for attaching thereto an inletpipe extending longitudinally of the discharge pipe, a valve in saidvalve casing for engaging said valve seat, .and operative means forseating saidy valve including a stem provided with means for operativelyengaging a ioat operated lever.

16. Inlet valve mechanism for flushing tanks including an inlet valvecasing formed or' two members, relatively rotatable with respect to eachother and means tor detachably clamping them together, one of ysaidmembers being provided with a valve seat' and vertical dischargepassages disposed laterally of said seat, a valve for engaging saidseat, valve seating means provided with a stem extending through theupper part of the other member of the easing, said upper part beingprovided with transverse horizontal apertures located atdifferent-distances from and on opposite sidesof the axis of said stem,a ioat lever having a pivot to engage the apertures on one side of saidaXis, and having a portion for engaging said valve seating stem, wherebyby loosening the clamping means and rotating the upper member ot saidvalve casing the float lever pivot may be placed in engagement in theapertures on the 'other sider ott the axis of said stem to change theleverage of the float lever with respect thereto to adapt the device foruse with dii"- 'erent water pressures. 1

In testimony whereof I aliix my signature.

` PHILIP HAAS. y

